Reproduction and Development Topic 4
Unlock all answers in this set
Unlock answersquestion
asexual reproduction
answer
a method of reproduction in whch all the genes passed on to the offspring come from a single individual or parent
question
cloning
answer
a technique used to make identical organisms
question
development
answer
the changes that occur from the fertilized egg to a complete individual; occurs by mitosis and differentiation of cells
question
differentiation
answer
the process that transforms developing cells into specialized cells with different structures and functions
question
egg
answer
a sex cell produced by a female
question
embryo
answer
an organism in the early stages of development (prior to birth)
question
estrogen
answer
a hormone (produced by the ovaries) that controls female sexual development and the reproductive process
question
expressed
answer
the way that an unseen gene is seen in an organism as an actual physical trait
question
fertilization
answer
the process that combines a sperm cell and an egg cell
question
fetus
answer
the unborn, developing young of an animal during the later stages of develoment
question
gamete
answer
an egg or sperm cell; a sex cell
question
gene expression
answer
Activation of a gene that results in the formation of a protein; the result of activated genes
question
meiosis
answer
the process that results in the formation of sex cells (sperm and eggs)
question
mitosis
answer
the process that divides the cell's nucleus into two, each with a complete set of genetic material from the parent cell
question
ovary (pl.ovaries)
answer
the organ of the human female reproductive system that produces an egg cell, the female gamete
question
placenta
answer
the organ that enables nutrients and oxygen to pass from the mother's blood to the fetus, and waste products to pass from the fetus to the mother's blood
question
progesterone
answer
a hormone associated with sexual development and the reproductive system
question
recombination
answer
the additional mixing of genetic material from a sperm and egg which results in a unique combination of genes
question
sex cell
answer
an egg (female) or a sperm (male)
question
sexual reproduction
answer
a method of reproduction that involves two parents to produce offspring that are genetically different from either parent
question
species
answer
a group of organsims that share certain characteristics and can mate with one another, producing fertile offspring
question
sperm
answer
the male sex cell
question
testes
answer
the male reproductive organ that produces sperm and the hormone testosterone
question
testosterone
answer
a hormone associated with male sexual development and reproduction
question
uterus
answer
the organ, in female animals, where the embryo develops into a fetus
question
zygote
answer
the cell that results from the joining of the egg and sperm
